Ascientific law states that planets move in elliptical orbits around stars. which of these statements is correct about this law?
it is not strengthened by data and observations.
it provides explanations for observations which can change.
it is a well supported description which cannot become a theory.
it can change from time to time due to new scientific evidence.
Answers: 1
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Ammonia enters the expansion valve of a refrigeration system at a pressure of 10 bar and a temperature of 18oc and exits at 6.0 bar. the refrigerant undergoes a throttling process. determine the temperature, in oc, and the quality of the refrigerant at the exit of the expansion valve.
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A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n
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Ascientific law states that planets move in elliptical orbits around stars. which of these statement...
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